SEPTEMBER, 1908. |] THE ORCHID REVIEW. 265 
INHERITANCE OF ALBINISM IN ORCHIDS. 
ANOTHER very important contribution to this subject has just been made. 
On August 18th an Award of Merit was given to Cypripedium X Rosetti 
(C. insigne Sanderianum X Maudie), exhibited by Lt.-Col. G. L. Holford, 
of Westonbirt, Tetbury, a beautiful bright yellow flower with some green 
veining on the dorsal sepal, and the upper third white. The flower has been 
kindly sent by Mr. Alexander, and is represented two-thirds natural size in 
the annexed figure, which is reproduced from a photograph taken by Mr. F. 
W. Rolfe. The two parents are given overleaf. Mr. Alexander writes :— 
“IT am sure you will like to see the flower of Cypripedium x Rosetti, 
Fig. 34. CYPRIPEDIUM X ROsETTI. 
after your interesting article on ‘ Inheritance of Albinism in Orchids’ (pp. 
228-230). The parentage is C. insigne Sanderianum x Maudie. We 
have a batch of seedlings, out of which about sixteen plants have flowered 
and not one has shown any trace of colour. In sizeand shape the majority 
take after the seed-parent, the one exhibited last Tuesday (being the largest 
and best. The cross previously mentioned, C.insigne Sandere x Maudie, 
was also raised here in 1901, and flowered in due course, and all came 
coloured, like those raised by Mr. Cookson. The other cross was raised in 
1905, and as it has yielded true albinos, does not this fact ‘ throw insigne: 
